Weft-carrier magazine



July 2l, 1925.

E. H. RYON wEFT CARRIER MAGAZINE #llaa may 2v, 1922 Patented July 21,1925.

"UNITED srares nrPA n'. RYoN, or wALrHAZn, nassACnUsnfrr-s, nssreuon ToCROMPTON 8c KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, ACORPORATION OF MASSACHUSETTS;

wnr'roaieainn MaGrimme.v

Application led May 27, 1922. Serial No. 564,187.

To all whom t may concern.' l

Be it known that I, Erri-i H. RYON, a. citizen of the United States,residing at ltaltham, in the county of Middlesex and State ofMassachusetts, have invented a new and useful 1weft-Carrier Magazine, ofwhich the following is a specification.

This invention relates to a. weft carrier magazine of the stationarytype which is common for weft replcnishing looms in which more than onekind of weft or llling is used. In such magazines it has been customaryto provide straight vertical compartments for the Y different series ofweft carriers.

lt sometimes happens that a certain kind or color of weft is used onlyoccasionally in a particular pattern, so that the weft carriers of thiskind remain for relatively long periods in the magazine. The vibrationof the loom, together with the occasional downward feeding movements inthe compartment, have been found to slowly rotate the weft carriers whenthus disposed, loosening the weft ends which are attached to a fixedpart of the magazine and twisting the ends about each other in suchmanner that they are frequently broken when the weft carriers aretransferred to the shuttle.

1t is the general object of my invention to provide a weft carriermagazine in which the weft carrier compartments are of a. specialconstruction, designed to prevent such angular movements of the weftcarrie-rs and to thus reduce breakage during transfer.

lilith this general object in view, my invention in its preferred formcontemplates the provision o-f weft carrier compartments having the sidewalls or guiding surfaces thereof formed with a succession of `reversedcurves which will cause the weft carriers to follow an irregular 0rsinuous path as they descend to the point of release and transfer.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

preferred form of my invention is shown in the drawings in which- Figlis an end elevation of my improved magazine;

Fig. 2 is a partial plan View thereof; and

Fig. 3 is a sectional elevation, taken substantially along the line 3-3in Fig. 2.

Referring to the drawings, l have shown a four-color magazine of the.general type v comprises end frames 10 and 11 rigidly held in spacedrelation by a plurality of cross rods.12. A. weft end holder 13 issecured Vto the outer face of the end frame 11 and depending guide rods14 extend downward on the outside of the end frame and in sul stantialalignment with vertical slots l5, throughwhich the weft ends are drawnfrom the weft carriers to the end holder 13.

Yielding supports 16 for the tips of the `bobbins or weft carriers areconnected by parallel links 17 and 18 to thelower` portions of the endframe 11. Upper and lower sliding bars 19 and 2O are provided at thebottom of each weft carrier compartment and are moved horizontally inopposite directions by `actuating mechanismnot shown, t-o release thelowest weft carrier in a compartment upon. indication of weft exhaustionin the shuttle using the corresponding kind or color of weft.

rl-he parts thus far described are fully disclosed in my priorapplication and form no part of my present invention. I have also showna movably mounted weft carrier release 21 of a usual form.

lily invention relates particularly to the provision of weft carriercompartments having peculiar and novel features indicated in Fig.Reference to the drawing will show that the head end of each compartmentcomprisesside walls 22 and 23, each formed of a succession ofintersectingarcs of circles and that the arcs on the opposite sides ofthe compartments are reversely and alternately arranged so as to form afrequently reversed or sinuous path for the heads of the weft carriers.The guideways 24 on the frame 11 may be substantially straight and ofsuilicient width to receive the tips of the weft carriers.

The side walls 22 and 23 are preferably spaced apart slightly more thanthe diameter of a weft carrier head, thus permitting free passage of theweft carriers and allowing them to assume the positions indicated inFig` 3. The weft carriers rest against the outer and lower curves of thecompartment walls and clear the points of intersection of adjacentcurves.

Hth this construction it is found that there is substantially notendency for the weft carriers to revolve about their axes as they movedownward in their compartments. The slight angular movement caused to aweft carrier by moving downward in rolling contact with one of the wallcurves is 'followed by an equal but reversed angular movement as theweft carrier engages and rolls downward upon the next succeediing andopposite wall curve, the net result being to maintain the weft carrierin substantiallyy constant angular position.

Furthermore, the vibration of the loom has little effect even upon theupper weft carrier in a compartment, as angular rotation in onedirection is prevented by contact with the curved side wall and anyangular movement in the opposite direction would require the weftcarrier to roll on the next lower weft carrier in such a direction as toraise its own center of gravity. Accordingly, it is found that the weftcarriers move downward in these irregular compartments substantiallywithout angular displacement and that there is therefore no unwinding ofthe weft or tangling of the weft ends.

Having thus described my invention and the advantages thereof, it willbe evident that changes and modifications can be made therein within thespirit and scope of my invention as set forth in the claims, and do notwish to be otherwise limited to the details herein disclosed, but what Iclaim is l. In a weft carrier magazine, weft carrier supporting` andreleasing devices, and means to guide the weft carriers to said devicesalong a path formed of a succession of reversely disposed curvedportions,

2. In a weft carrier magazine, weft carrier supporting and releasingdevices, and means to guide the weft carriers tosaid devices along adeiinitely fixed zig-zag path in which the direction of movement 0i theweft carrier is repeatedly reversed at predetermined points.

3. In ar werft carrier magazine, a substantially vertical compartmenthaving an alternately reversely curved guideway 'for weft carrierstherein.

elf. ln a wet't carrier magazine, a weft carrier guideway having sidewalls each comprising a succession of sharply intersecting curvedsurfaces,

5. in a weit carrier magazine, a weit carrier guideway having side wallseach comprising a succession of intersecting curves, the curves in theopposite walls being reversely disposed and alternately arranged.

(3. In a weft carrier magazine, a weft carrier compartment having asubstantially straight vertical guideway for the tip of the weft carrierand having a sinuous guideway for the head of the weft carrier.

7. A weft carrier magazine comprising guideways in each of which weftcarriers are supported in a single line in predetermined staggeredrelation, and means to cause delinite alternately directed lateralmovements of said we'ltt carriers as they move downward in saidmagazineguideways.

In testimony whereof I have hereunto at iiXed my signature.

EPPA H. RYON.

